Process and device for the synchronous addition of odors to visual and/or acoustic stimulation

ABSTRACT

In a process for increasing the sensual perception of visual and/or acoustic stimulations, especially in cinemas, theaters, concert and lecture halls and in slide shows, videos, television transmissions, audio games and the like, the viewers or listeners are offered suitable odors synchronously with the provision of certain visual and/or acoustic stimulation. The odors passed to the viewers or listeners by a stream of vehicle gas are heated before the dischange of the vehicle gas in the air surrounding the viewers or listeners to an odor-specific temperature which ensures that the odoros or aromatic substances are appreciated.

This application is a divisional of application Ser. No. 08/537,937,filed Dec. 12, 1995, now U.S. Pat. No. 5,760,873.

DESCRIPTION

The invention relates to a process and a device for adding odours orscents synchronously to visual and/or acoustic stimuli.

The invention relates to a process and a device for intensifying thesensorial perception of visual and/or acoustic presentations, inparticular in cinemas, theaters, concert and conference halls, as wellas during slide and video shows, television and radio broadcasts and thelike, the audience being provided with scents corresponding to, andsynchronous with, specific visual and/or acoustic events or scenes. Aprocess and pertinent devices of this kind have been described in theapplicant's German Patent Application No. P 41 35 796.5.

The present invention is primarily based on the object of improving aprocess and a device of this kind such that the characteristics of thescents used in the process can be perceived even better and are alteredas little as possible.

This object is solved according to the invention by the subject matterof patent claims 1 to 16. Preferred developments, aspects and details ofthe invention can be seen from the dependent claims, the specificationand the drawings.

Thanks to scent-specific thermal treatment, scents can be realizedperfectly and true to nature for the first time.

Besides, it is possible by way of the invention to maintain the qualityof the scents or odours used without any alteration and to avoidunwanted ageing and changes caused by the conduit system.

The invention provides a scent or aroma heating system as well as aconduit system for aroma cinemas and for projection apparatus used forcinematographic or other performances, which make it possible to providescents exactly in correspondence with specific scenes.

According to a preferred embodiment of the process of the inventionintended to intensify the sensorial perception of visual and/or acousticpresentations, the scents conveyed to the-audience via a stream ofcarrier gas are heated to scent-specific temperatures before the carriergas is released into the ambient air in the auditorium; saidscent-specific temperatures are required in order that the perfumes andaromas may come to bear. Hence, certain scents which, after beingproduced, were impossible to realize because temperatures were too lowcan now be presented publicly for the first time.

In this process, the carrier gas is preferably heated to thescent-specific temperature, suitably before it gets into contact withthe respective scent or aromatic substance. Alternatively, the carriergas may be heated after contacting the aroma, which is preferablyeffected in the conduit system.

A temperature drop in the conduit system can be reliably prevented byheating the carrier gas to the scent-specific temperature just before itis released into the ambient air in the auditorium.

In order to prevent scents from adhering to the conduits andsuperimposing some other scent desired at that moment, the conduits areregularly purged, preferably by intermittently conveying the aroma-ladencarrier gas and a purging gas through the ducts to the auditorium. Thecarrier gas charged with the aroma and the purging gas are suitablyconveyed in pulse-like successive intervals so that a quasi permanentpurging process is effected.

In a particularly favourable embodiment, the carrier gas contains heliumor consists of helium. In this case, a film scent system is obtained inwhich helium heated to a temperature appropriate for the respectivescent is used to develop the characteristics of said scent and in whichthe scent can also be quickly removed from the spectator's seat. Inorder to save helium, empty chairs in the aroma cinema are automaticallycut off from the scent stream.

For reasons of cost, air--preferably compressed air--which may beadditionally heated is used as purging gas.

It is important, particularly in a film scent system, to delay ageing ofthe aromatic substances in order to ensure the quality of the scentperceived by the audience. For this purpose, it is suggested that, inorder to prevent ageing, the scents or aromas be cooled until they comeinto contact with the carrier gas. Such cooling may be effected in adeep cooling process.

So as to prevent the aromatic substances from adhering to the conduitwalls during the passage through the conduit system, the carrier gasand/or the purging gas is/are suitably subjected to a constant rotarywhirling motion, preferably a constant spiral rotary motion, in theconduit system leading to the audience.

According to another preferred aspect of the invention, a device isprovided, particularly for carrying out the afore-described process,which comprises multiple conduits leading to the audience, at least oneof said conduits being available, in alternating manner, for the supplyof scent and another for the purging operation. Thus a purging systemfor scent supply conduits is achieved, which can also operate during theshowing of a motion picture. This arrangement is preferably realized inthe form of a twin system in which one system conveys scents to, andevacuates unwanted scents from, the spectator whereas the other systemcarries out the purging operation and can be used again as soon asaromatic substances settle in the first system.

This objective can also be achieved on the basis of multiple systems inwhich the conduits last used are purged and operation is switched to theother, available conduits. Alternatively, a purging system can beprovided in which air (optionally heated) is passed through the conduitswhen no scents are supplied to the audience.

It has also proved useful for the device to contain a cooling meanswhich cools the at least one scent or aroma reservoir.

The heating system for the aromatic substances preferably used inso-called aroma cinemas has to be designed such that the individualscents can be heated differently, i.e. according to their nature and thescent-related technical requirements. For such scent-specific heating,at least one controllable heating means for heating the carrier gas ispreferably used.

A heating means is preferably provided such that the carrier gas isheated before it comes into contact with the at least one aroma.Alternatively, or additionally, a heating means may be provided adjacenteach of the at least one scent discharge opening(s) located in theauditorium, which can preferably be adjusted individually. Heat loss inthe transport system is thus reliably prevented.

Furthermore, a heating means can be provided between the at least onescent or aroma reservoir and the at least one scent discharge opening.

So as to reduce scent deposits in the conduit system, the conduits usedfor the transport of scents comprise at least at the inside a layer ofinert material, preferably of glass or ceramics. In an advantageousembodiment, the conduits used for the transport of scents are designedcompletely as glass or ceramic conduits.

Aroma deposits at the conduit walls are also counteracted by means ofspiral projections or projections having a similar effect at the innerwalls of the conduits used for the transport of scents, or by designingsaid conduits in the form of spirals.

Further details regarding the design of the device and the process canbe seen from the applicant's PCT application PCT/EP92/02446 (copyenclosed), the entire content of which is incorporated in the disclosureof the present application.

In the following, the invention is further explained with reference tothe figures.

FIG. 1 shows a scent-specific heating and control system for aromacinemas;

FIG. 2 shows a film strip with heat signals and control data;

FIG. 3 shows a cooling and drying system for film scent reservoirs;

FIG. 4 shows a longitudinal section of a scent supply conduit having acommon flow profile;

FIG. 5 shows a longitudinal section of a scent supply conduit which isspirally shaped at the inside;

FIG. 6 shows a longitudinal section of a buffered and armoured scentglass pipe which is spirally shaped at the inside;

FIG. 7 shows a cross-section of a double twin conduit including apurging system;

FIG. 8 shows a cross-section of another embodiment of the supply conduitsystem of FIG. 7;

FIG. 9a shows a cross-section of the double twin system of FIG. 8, thefirst conduit being switched to the purging state;

FIG. 9b shows a cross-section of the double twin system of FIG. 8, thefirst conduit being switched to the scent conveying state;

The embodiment of the invention as illustrated in FIG. 1 shows a scentheating and controlling system for the introduction of scents duringmotion picture shows, etc., which consists of a control unit 1comprising a twin conduit 5 consisting of a scent supply conduit 2 and areturn conduit 3, as referred to in the afore-mentioned application No.PCT/EP92/02446 incorporated herein.

In the present embodiment of the invention, the control unit 1 is againprovided directly at the cinema viewing chair, the scent-chargedquantities of air introduced being in the micro-range beyond existingair-conditioning technology, preferably between 0.2 and 0.0002 1/sec.

The control unit 1 enables the individual viewer to preset the intensityof scent impressions conveyed in correspondence to the movie scenes viathe scent supply conduit 2 by way of the conduit controlling means 14according to his/her own liking. Excess scent-charged air is fed intothe return conduit 3 via the conduit controlling means 14.

In the above-referenced application, it has already been suggested forphysical reasons that the scents discharged at the individual seats beheated to 3 to 4 degrees above air temperature in the cinema. Thisshould lead to a reconduition in the specific gravity of the dischargedscent/air mixture; the scent last emitted immediately rises towards theceiling of the cinema or the air-conditioning system so thatsuperposition of scents of several movie scenes is avoided.

According to the present application, scents relating to differentscenes are separated a lot more effectively when helium is added or usedin pure form as scent transport medium, as will be described in moredetail below.

Apart from the physical properties, a certain way of heating the emittedaroma quantities, via air, helium or other transport media, entailsanother, very important aspect regarding aroma technology.

The fascination of a movie being accompanied by scents often depends onthe extent to which the complete spectrum of an aromas can be perfectlyproduced. Many aromas only develop their essential characteristics atspecific temperatures. Often scents and aromas cannot be perceived orrecognized without the specific effects of temperature; this is aproblem frequently encountered by manufacturers or aromatic substances,who are usually not able to control the temperature at which a scent oraroma is applied. So it happens that certain aroma features can begenerated under specific, ideal temperature conditions but cannot bereproduced in the concrete case of application.

In the present case, where scents are controlled by film and, as alreadymentioned, preferably transported by micro quantities of helium, it ispossible for the first time to also provide the ideal temperatureprofile of the scents, thus making them accessible for consumers for thefirst time.

As illustrated in FIG. 1, a heating system 7 is provided at the scentsupply conduit 2 before the control unit 1, said heating system beingcontrolled via a heating control means 9. The heating control means 9 isconnected to a pulse scanner (not shown) via a control cable 10.

During the showing of the movie, the pulse scanner reads data relatingto the appropriate thermal value of a scent from a signal track 8 of thefilm stock 12 (FIG. 2). As the optimum temperature may vary from scentto scent, the respective scent-specific temperature signals 15 whichtrigger the heating system 7 are also arranged on the signal track 8 ofthe film (FIG. 2).

Depending on the design of the device, heating of the heating system 7to the appropriate thermal value may take a few seconds, e.g. 3 seconds.For this reason, the associated temperature signal 15 is arranged at acorrespondingly earlier position on the signal track 8 of the film stock12 (FIG. 2) so that the thermal value pertaining to the desired scentand the associated movie scene are in synchronism.

In order to keep the heating step as short as possible, the surface ofthe supply conduit 2 is somewhat increased in the area of the heatingsystem 7, e.g. by way of a flattened conduit, which also leads to a morerapid cooling of the heating system 7 in the case of successive lowerthermal values.

Irrespective of other improvements of a scent's characteristics, theheating step may generally intensify the scent. In another embodiment(not shown), the heat level of the heating system 7 disposed at thespectator's seat can therefore be controlled to some extent by theconduit controlling means 14 which regulates scent intensity anyway.

In further embodiments of the invention (not shown), the heating system7 may be incorporated in other positions of the scent supply system. Itcan be inserted at the start of a collective conduit for 10 seats andother positions of the distributing system, for instance.

If the heating system is positioned directly behind the central scentintroducing system (not shown), the entire aroma cinema installationrequires only a single heating system; in this case, the thermal valuesmust increase with increasing distance of the heating system from theindividual viewing chairs in order to compensate for heat losses in theconduit system.

In other embodiments of the invention which are designed in a basicallysimilar way, helium is used as transport medium instead of minimizedquantities of air. As helium is about seven times lighter than air, theintroduced scents disappear quickly.

The particular advantage of this embodiment resides in the fact that thescents or aromas evacuate very quickly due to the inherent buoyancy ofthe transport medium so that no disturbing ventilator or the like isrequired.

Due to the extremely small amounts of gas used, superposition of scentsin the audience is thus reliably prevented without any perceptibleventilation. This is very important, as the audience will not bedistracted from the movie in any way.

Helium is excellently suited for this purpose, both with regard tohealth and safety regulations. It is non-combustible, chemically inertand completely harmless with respect to health; it has been usedsuccessfully for breathing apparatus of divers and breathing aids ofasthmatics for decades.

The inner surfaces of the conduits and the conduit arrangement may haveto be adjusted somewhat because of the considerably smoother and quickerflow of helium.

The quantities of helium required for scent transport are very small;nevertheless, thrifty use can be of advantage. According to anembodiment of the invention (not shown), seats that are not occupiedduring the showing of a movie are automatically disconnected from thescent stream so as to prevent expensive helium from being dischargedunnecessarily. In a modified version, only the occupied seats areactivated either manually by pushbutton or upon contact when a personsits down so that aromas and helium are only given off at the seatsactually used.

The fascination of scents accompanying a movie does not only depend onthe activation of the aroma available but also on the profile of anaroma whose particular characteristics have to be maintained.

For an aromatic impression to be considered credible and true to nature,the ageing process of the scent is often very important. To prevent thearomatic substances which at the time of discharge may have spent manyweeks in the film scent reservoir of a cinema from ageing prematurely,the ambient temperature of the aromas to be stored is considerablydecreased in the film scent reservoir 4 according to the embodiment ofthe invention as illustrated in FIG. 3.

The aromatic substances associated with individual scenes are containedin scent carriers 16 arranged on a scent roll 18. The scent roll 18 isrotatably mounted on a journal bearing 22 and secured by a journalsecuring means 23. The scent conduit leading to the viewers has accessto all scent carriers 16 of the scent roll 18 via the scent connectingpiece 24. The correct scent associated with a certain scene is triggeredby scent pulses 11 arranged on the signal track 8 of the film stock 12which are supplied to the scent roll controlling means 13. The scentroll controlling means 13 selects the appropriate scene-related aromavia the control wheel 21.

For reducing the ambient temperature of the aromas stored on the scentroll 18, a specific dry cooling system 17 is incorporated in the filmscent reservoir 4. The dry cooling system adjusts the ambient air in thefilm scent reservoir 4 at coolness and moisture values optimally suitedfor all the scents on the scent roll 18; said values may vary slightlydepending on the scent roll 18 and the film.

The specific coolness and moisture values of each scent roll 18 arereported to the central controlling means 30 via a data track (notshown) on the scent roll 18.

The appropriate coolness value is fed from the central controlling means30 to the dry cooling system 17, the excess heat flowing to the externalheat exchangers 20. The moisture which frequently collects duringcooling steps and which may impair the quality of some aromas iscontrolled in the film scent reservoir 4 via a moisture controllingmeans 27 which is also controlled by the central controlling means 30.

The central controlling means 30 simultaneously controls all scentcommands fed to the scent roll 18 via the scent controlling means 13, aswell as all the commands used in the cinema, e.g. commands concerningvalves, the heating process and the like.

The scents introduced in the conduit system from the scent carriers 16of the scent roll 18 via the scent connecting piece 24 are delivered--ina most accurately electronically controlled process--to the individualspectator and are optionally activated by a heating system. If theheating system is a central heating system directly behind the scentinlet at the scent connecting piece 24, the required thermal energy mayoptionally be drawn by a correspondingly adapted heat exchanger of thecooling system.

FIG. 4, which illustrates an embodiment of a scent supply conduit, showsthe type of flow profile in a scent supply conduit 31 (considerablyenlarged) as intended in application PCT/EP92/02446 incorporated herein.

Said scent supply conduit 31 comprises a conduit wall 32 with a straightinner wall 32a and the flow profile 39 as it usually occurs in thisconnection. It can be clearly seen that the flow velocity of the airconveyed in said conduit sharply decreases at the inner walls 32a of theconduit.

This may lead to micro-particles, here: aroma particles, carried in theair flow being deposited on the edges of such conduits, as they are notsufficiently entrained by the slow marginal flow.

When aromas are given off for a rather long period of time, so manyaroma particles may deposit on the conduit walls that a subsequent airflow without aromas, i.e. pure air, takes on the scent of previous aromadischarge(s) and carries said scent to the audience even after therelevant movie scene.

Likewise, previous aromas could mix with subsequent scents and cause amixture of scents which the audience may find to be unpleasant and whichwould no longer correspond to the movie scenes. As a result, theaudience would be irritated and distracted from the movie instead ofexperiencing it more intensely.

So as to overcome this drawback, the embodiment of the invention asillustrated in FIG. 5 (in enlarged form) which consists of a scentsupply conduit 37 and a conduit wall 33 has inner surfaces 33a ofspecific design.

The inner surfaces 33a of the conduit wall 33 comprise elongatedrecesses or projections 34 designed to impart a continuous rotary motionon the air flowing therethrough. In the present embodiment, the recessesor projections 34 have the shape of a spiral line which slightlyprotrudes inwardly from the inner surfaces 33a of the conduit wall 33and continues this way over the entire length of the conduit.

As the spirally arranged projections 34 impart a continuous spiralrotary motion on the air flowing through the conduit, the velocity ofthe air passing along the edges of the conduit is considerably increasedand, depending on the design, may even exceed the velocity of the airflowing in the middle of the conduit.

The aroma particles entrained in the air stream are thus also stronglyaccelerated in the marginal layers of the stream, which prevents thearoma particles from depositing on the inner surfaces 33a of the conduitwall 33. The projections 34, here: a spiral line, are incorporated inthe inner surface 33a of the conduit wall 33 during the manufacturingprocess. Shapes of this kind can also be obtained by deforming theconduit as a whole in a slightly torsional manner during themanufacturing process.

To prevent the formation of unwanted micro-turbulences behind theprojections 34 (in the direction of flow) and thus the accumulation ofaroma particles, the contours of the spiral projections 34 arerelatively smoothly shaped.

Apart from the shape of the inner surfaces 33a of the conduit wall 33,the fine structure of said surfaces and a possible chemical reactivityof the material are important factors for the prevention of aromadeposits.

As regards the chemical reactivity with aroma particles, most plasticsare reactive and therefore generally not suited for this field ofapplication, in spite of their favourable processibility. In a preferredembodiment of the invention, the material used for the conduit wall 33is a particularly inert type of steel, e.g. V4a steel.

Even ducts made of steel and other inert materials may cause problems,however. If the surfaces exhibit fissures or various minuteindentations, for example (detectable by microscopic inspection), aromaparticles will be more likely to settle than on very smooth surfaces.

According to another embodiment of the invention, shown in enlarged formin FIG. 6, particulary favorable materials, namely-relatively elastictypes of glass, are used for the conduit walls 33 of the scent supplyconduits 37. Conduits made of glass have the smoothest surfaces in themicrorange, so that aroma deposits are basically ruled out.

Such glass conduits can also be provided with structures, e.g. spiralprojections 34, which impart a continuous rotary motion on the stream ofair until the air is discharged at the viewer's seat.

In the special scent supply conduits 37 of the embodiment illustrated inFIG. 6, aroma deposits are prevented in two ways: the spiral-shapedcourse structure of the surface accelerates the air flowing in themarginal layers of the air stream to such an extent that the entrainedaroma molecules are prevented from slowing down and adhering to theinner surfaces 33a, while the smooth fine structure of the innersurfaces 33a of the conduit walls 33 prevents aroma molecules fromsettling down even under the most unfavorable flow conditions.

It might be advantageous to protect elastic types of glass from externalstrains, too, particularly if they are not laid under the floor but aresubsequently installed as micro-conduits above the floor of existingmovie theaters. For this reason, the conduit walls 33 of the embodimentillustrated in FIG. 6 are additionally embedded in an elastic layer 42which in turn is supported in a warp-resistant protective sleeve 35which is made of hard plastics or high-carbon steel, for example.

In another embodiment of the invention as illustrated in FIG. 7, aromadeposits on the inner surfaces of the conduits are not primarilyprevented by the surface properties of the conduits. Rather, two twinconduits 37a and 37b are used which are supported in an elastic layer 42enclosed by the flat aggregate sleeve 36.

Of the two twin conduits only one, e.g. conduit 37a, is used for thesupply of aromas. After certain intervals of predetermined length (basedon experience), e.g. 60 functional minutes, when the onset of even theslightest aroma deposits can be detected, operation can be switched fromtwin conduit 37a to twin conduit 37b in the scent supply conduit 40.

When both twin conduits 37a and 37b have been used, the conduits can bepurged as indicated in the original application, P 41 35 796.5, where adouble conduit, e.g. 37a, is joined at the outlet opening.

Instead of air, a cleansing liquid is introduced in one of the twoconduits of the twin conduit 37b, said liquid flowing through the wholeconduit to the spectator's seat (not shown), changing over to the secondconduit and subsequently flowing back to the compressor (not shown). Inthis process, both individual conduits of the twin conduit 37b arecleaned at the same time, while immediately afterwards warm air fordrying passes therethrough.

If both twin conduits 37a and 37b of the embodiment of the inventionaccording to FIGS. 7, 8, 9a and 9b are expected be used up during amotion picture show, it is also possible--due to the very small conduitdiameters and the relatively low pressure--to clean one of the two twinconduits without perceptible noise during the show while the other twinconduit is further used for conveying scents. Due to the very smallvolumes involved, such a cleaning step can be effected in about 0.5 to 3minutes.

If, according to this embodiment, cleaning shall be effected during ashow, the twin conduits 37a and 37b are preferably combined to afunctional block 38 in the final portion at the spectator's seat, andthe conduit cross-sections are preferably changed from round torectangular shapes (FIG. 8).

FIGS. 9a and 9b of the embodiment illustrated in FIG. 8 refer to themode of operation of the final portion of the conduit if a conduit is tobe purged during the showing of a movie. Two conduits of a twin conduit37b are joined at the outlet opening, i.e. at the final portion of theconduit in the area of the spectator's seat, by means of end valves 25or 26 which are electronically controlled and operate without noise.

If the end valve 25 is activated and the end valve 26 is deactivated,the twin conduit 37b can be further used for conveying aromas while thetwin conduit 37a is purged (FIG. 9a). In this case, the conduit 37bextends into the final portion 41 of the conduit towards the spectator.

When aroma deposits are to be expected in the supply conduit of twinconduit 37b, valve 26 is activated and valve 25 deactivated during anappropriate scent interval. The aroma is then conveyed through thepreviously purged twin conduit 37a to the final portion of the conduit,and the twin conduit 37b is purged.

Such switching operations without noise can be effected by various typesof valve and valve arrangements, e.g. by slide and lock valves, orvalves which change over particularly slowly and in addition may bedampened.

All end valves 25 and 26 combined are actuated centrally, e.g. from theprojectionist's cabin via radio or via a small electronic line which maybe integrated in the scent supply system.

Noiseless valve operation guarantees that the motion picture show willnot be disturbed when all valves, e.g. 500 valves in a 500-seat movietheater, are switched simultaneously. If it is not possible to avoidnoise completely when switching a large number of valves simultaneously,the valves can be switched in segments, e.g. first for about 20% ofseats, then for the next 20%, and so on.

Another measure to completely avoid even the slightest noise during theswitching of valves or the subsequent purging operation is to carry outthe switching and purging of a conduit exactly during a loud sequence ofthe movie. The noise pertaining to the movie then masks possible othernoise. The signal 19 for triggering the switching and purging phase,which has to be arranged directly after the start of a loud moviesequence, is preferably located on the signal track 8 of the film wherethe other signals for aroma control are located, too.

Another measure for preventing aromatic substances from accumulating inthe conduits is to purge the conduits with normal and, optionally,slightly heated air during all phases of the movie where no aromas areconveyed to the audience. For this purpose, a reversing valve (notshown) is provided directly after the scent reservoir from which thearomas are introduced in the conduits, i.e. within the projectionist'scabin.

The reversing valve is activated when there has been no introduction ofscent for a specified period of time; it is deactivated as soon asaromas are fed into the system again.

LIST OF REFERENCE NUMBERS

(1) control unit

(2) scent supply conduit means

(3) return conduit

(4) film scent reservoir

(5) twin conduit

(7) heating system

(8) signal track

(9) heating control means

(10) control cable

(11) scent pulse

(12) film stock

(13) scent roll controlling means

(14) conduit controlling means

(15) temperature signal

(16) scent carrier

(17) dry cooling system

(18) scent roll conduit

(19) purging signal

(20) heat exchanger

(21) control wheel

(22) journal bearing

(23) journal securing means

(24) scent connecting piece

(25) end valve

(26) end valve

(27) air moisture controlling means

(30) central controlling means

(31) scent supply conduit

(32) conduit wall

(32a) inner wall

(33) conduit wall

(33a) inner surfaces

(34) projections

(35) protective sleeve

(36) aggregate sleeve

(37) scent supply conduit

(37a) twin conduit

(37b) further twin conduit

(38) conduit block

(39) flow profile

(40) scent supply conduit

(41) end portion of conduit

(42) elastic layer

I claim:
 1. Process for intensifying sensorial perception of visualand/or acoustic presentations being made to spectators, the processcomprising the steps of providing each spectator with an individualsupply of scent by conducting a scent/air stream to a discharge outletlocated adjacent the spectator, and discharging the scent/air streamfrom the outlet at a rate between 0.2 and 0.0002 1/sec.
 2. The processaccording to claim 1, further including the steps of storing the scentin a storage space and activating a cooling mechanism to cool the storedscent in the storage space.
 3. The process according to claim 1, furtherincluding the step of controlling the moisture in a film scent reservoirvia a moisture controlling means.
 4. The process according to claim 1wherein the supplying step comprises conducting a plurality of flows ofscent through conduits, each flow being discharged immediately adjacenta respective chair in a room.
 5. The process according to claim 1,wherein the spectators occupy respective seats, there being additional,unoccupied seats, the conducting step further comprising connecting onlythe occupied seats with a source of the scent/air stream.
 6. The processaccording to claim 5, wherein the supplying step comprises manuallydisconnecting a source of the scent/air stream from the unoccupied seatsand connecting the scent/air stream to the occupied seats.
 7. Theprocess according to claim 5, wherein the supplying step comprisesconnecting the occupied seats to a source of the scent/air streamautomatically in response to a spectator occupying a respective seat. 8.Process for intensifying sensorial perception of visual and/or acousticpresentations being made to spectators, the process comprising the stepsof providing each spectator with an individual supply of scent, eachindividual supply formed by mixing a scent in an air stream, conductingthe scent/air stream to a discharge outlet located adjacent thespectator, discharging the scent/air stream from the outlet, heating thescent/air stream subsequent to the mixing step and prior to thedischarging step, storing the scent in a storage space prior to themixing step, and activating a cooling mechanism to cool the stored scentin the storage space.
 9. The process according to claim 8 wherein theproviding step comprises conducting a plurality of flows of scentthrough conduits, each flow being discharged immediately adjacent arespective chair in a room.
 10. Process for intensifying sensorialperception of visual and/or acoustic presentations being made tospectators, the process comprising the steps of providing each spectatorwith an individual supply of scent, each individual supply formed bymixing a scent in an air stream, conducting the scent/air stream to adischarge outlet located adjacent the spectator, discharging thescent/air stream from the outlet, heating the scent/air streamsubsequent to the mixing step and prior to the discharging step, andcontrolling the moisture in a film scent reservoir via a moisturecontrolling means.